Nasal placode
Encyclopedia
The nasal placode gives rise to the olfactory epithelium
of the nose
.
The terms "nasal sac" or "nasal pit" are sometimes used to describe an intermediate structure arising between the placode and epithelium chronologically.
Olfactory epithelium
The olfactory epithelium is a specialized epithelial tissue inside the nasal cavity that is involved in smell. In humans, it measures about 1 square centimetre and lies on the roof of the nasal cavity about 7 cm above and behind the nostrils...
of the nose
Human nose
The visible part of the human nose is the protruding part of the face that bears the nostrils. The shape of the nose is determined by the ethmoid bone and the nasal septum, which consists mostly of cartilage and which separates the nostrils...
.
The terms "nasal sac" or "nasal pit" are sometimes used to describe an intermediate structure arising between the placode and epithelium chronologically.
External links
- http://embryology.med.unsw.edu.au/Notes/week4_3.htm#nose
- http://www.ana.ed.ac.uk/database/humat/notes/embryo/sensory/nose.htm